Oxfam said companies like Glencore were "profiting from the misery and suffering of poor people who are worst hit by high and volatile food prices", adding: "If we are going to fix the ailing food system then traders must be part of the cure."

The United Nations, aid agencies and the British Government have lined up to attack the world's largest commodities trading company, Glencore, after it described the current global food crisis and soaring world prices as a "good" business opportunity.

With the US experiencing a rerun of the drought "Dust Bowl" days of the 1930s and Russia suffering a similar food crisis that could see Vladimir Putin's government banning grain exports, the senior economist of the UN's Food and Agriculture Organisation, Concepcion Calpe, told The Independent: "Private companies like Glencore are playing a game that will make them enormous profits."

Oxfam was scathing about Glencore's exploitation of volatile world food prices. Jodie Thorpe, from the aid agency's Grow Campaign, said: "Glencore's comment that 'high prices and lots of volatility and dislocation' was 'good' gives us a rare glimpse into the little-known world of companies that dominate the global food system."

Oxfam said companies like Glencore were "profiting from the misery and suffering of poor people who are worst hit by high and volatile food prices", adding: "If we are going to fix the ailing food system then traders must be part of the cure."